Happy Valley 100K map tile Groundwater Dependent Ecosystems (GDEs)
Mapsheet number 9547
Version 1.5
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Surface expression GDE (points)

Known GDE

Derived GDE - moderate confidence

Surface expression GDE (lines)

Derived GDE - high confidence

Channels on coastal dunes below 50 metres elevation (no elevation limit on Fraser Island)
Surface ecosystems dependent on the surface expression of groundwater

Derived GDE - low confidence

Surface expression GDE (areas)

81-100% GDE, known GDE

81-100% GDE, derived GDE - high confidence

Wetlands (excluding riverine REs) on coastal sand mass below 50 metres elevation (no elevation limit on Fraser Island)
Surface ecosystems dependent on the surface expression of groundwater

81-100% GDE, derived GDE - moderate confidence

81-100% GDE, derived GDE - low confidence

01-80% GDE, derived GDE - high confidence

01-80% GDE, derived GDE - moderate confidence

01-80% GDE, derived GDE - low confidence

Terrestrial GDE

Non-wetland vegetation on coastal dunes (land zone 2 REs)
Surface ecosystems dependent on the sub-surface presence of groundwater

Subterranean GDE (caves)

Derived GDE - unknown confidence

Potential GDE aquifer

Unconsolidated sedimentary aquifers

Consolidated sedimentary aquifers

Igneous rock aquifers

Metamorphic rock aquifers

Mixture of consolidated sedimentary, igneous and

or metamorphic rock aquifers

No identified aquifers